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74ABT20D Scheda tecnica(PDF) 3 Page - NXP Semiconductors |
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74ABT20D Scheda tecnica(HTML) 3 Page - NXP Semiconductors |
3 / 3 page Philips Semiconductors Product specification 74ABT20 Dual 4-input NAND gate 1995 Sep 22 3 AC CHARACTERISTICS GND = 0V; tR = tF = 2.5ns; CL = 50pF, RL = 500Ω SYMBOL PARAMETER WAVEFORM LIMITS UNIT SYMBOL PARAMETER WAVEFORM Tamb = +25°C VCC = +5.0V Tamb = –40°C to +85°C VCC = +5.0V ±0.5V UNIT MIN TYP MAX MIN MAX tPLH tPHL Propagation delay An, Bn, Cn, Dn to Yn 1 1.0 1.0 2.7 2.2 3.9 3.4 1.0 1.0 4.6 3.8 ns tOSHL tOSLH1 Output to Output skew An or Bn to Yn 2 0.3 0.5 0.5 ns NOTE: 1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The specification applies to any outputs switching in the the same direction, either HIGH–to-LOW (tOSHL) or LOW-to-HIGH (tOSLH); parameter guaranteed by design. AC WAVEFORMS VM = 1.5V, VIN = GND to 3.0V VM VM VM VM Yn An, Bn, Cn, Dn tPHL tPLH SA00353 Waveform 1. Propagation Delay for Inverting Outputs OUTPUT N same part INPUT SA00381 OUTPUT tPLH MIN tPHL MIN tPLH MAX tPHL MAX tOSLH tOSHL Waveform 2. Common edge skew TEST CIRCUIT AND WAVEFORMS PULSE GENERATOR RT VIN D.U.T. VOUT CL RL VCC Test Circuit for Outputs VM VM tW AMP (V) NEGATIVE PULSE 10% 10% 90% 90% 0V VM VM tW AMP (V) POSITIVE PULSE 90% 90% 10% 10% 0V tTHL (tF) tTLH (tR)tTHL (tF) tTLH (tR) VM = 1.5V Input Pulse Definition DEFINITIONS RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators. INPUT PULSE REQUIREMENTS FAMILY 74ABT SH00067 Amplitude Rep. Rate tW tF 3.0V 1MHz 500ns 2.5ns tR 2.5ns |
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